Car-brake



(No Model.)

W. H. ADAMS.V

GAR BRAKE.

No. 27L206.

UNITED STATES PATENT OFFICE.

WILLIAM H. ADAMS, OF BOSTON, MASSACHUSETTS.

CAR-BRAKE.

SPECIFICATION forming part of Letters Patent No. 271,206, dated January 30, 1883.

Application tiled October 9, 1882. (No model.)

To all whom it may concern Be it Aknown that I, WILLIAM H. ADAMS, of Boston, in the county of Suffolk, in the State of Massachusetts, Khave invented certain new and usefulImprovementsin Horse-Gar Brakes, of which the following is a specification.

My invention relates to that class ot' brakes in which the user operates the same by the pressure of his foot. The object being to provide a device by which the operator by repeated pressure of his lfoot may accumulate the force to be applied to the brake to any desired extent, and by a simple turn 'of the foot annui the force so appliedv and release the wheels from the pressure of the brake. This object I attain by mechanism shown in the accompanying drawings, in which- Figure l is a plan view of the under side of the car. Fig. 2 is an elevation ot' the device for operating the brake. Fig. 3 is a plan of the parts shown in Fig. 2. Fig. et is a vertical section, showing the foot-rest and some of its connected parts.

In the drawings, A represents the body of the car, provided with trucks A' A', and with the ordinary Tanner brake device, B B' B2 B3 .B4 B5.

scription.

I will now describe my invention.

D is aratchet-plate connected to the brakerod D. (See Figs. 1 and 2.) This ratchet` plate slides in a housing, D5.

D2 is a bell-crank lever, the end D"t of which acts as a pawl to engage with the ratchet D', so that each movement of this bell-crank lever D2 will cause the ratchet-plate D to advance, which action, acting through the rod D and central lever, D3, brings the brakes to bear upon the wheels. f

F is a retainingfpawl, which holds the plate The above parts, not being new and, being well known, do not require further de- D and its connecting parts in the position in which the actuating-pawl D4 leaves them.

The bent lever D2 is operated by the foot socket or rest L and the vertical rod L'. The 4 5 return motion of the foot-rest L is caused by the tension-sprin g S, which, act-in g through the bell-crank lever D2, throws it up. The spring S also in drawing back the pawl end of the bell-crank lever places it in position to re-en- 5o gage with the ratchet D'.

To release the ratchet D' and through it the whole brake device, I attach to the lower` end of the rod L' a tumbler, K. This tumbler, acting upon the lever H, which is pivoted at H', causes (when turned by the motion ofthe foot in tbe foot-rest L) the rear end of the lever H to force the acting-pawl D4 and the holding-pawl F out of connection with the ratchet-teeth of the plate D', thus releasing the plate D' and the entire 4brake device.

The foot-rests L L at the ends of the car are connected together by arms M M and the rod M', so that theturning of one foot-rest will operate the other, and through it all of the connecting parts.

I claiml. The combination ot' the foot-rest L, rod L', and bell-crank pawl-lever D2,'with the ratchet-plate D', rod D ,and brake device, substantially as described, and for the purpose set forth. t

2. The combination ot' the foot-rest L, rod L', and the tumbler K, with the lever H and pawls D4 F, whereby the ratchet D'is released, 75 all operating together, substantially as described, and for the purpose set forth.

WILLIAM H. ADAMS.

Witnesses:

WILLIAM EDsoN, HELEN M. FEEGAN. 

